Water soluble cellulose acetate composition having improved proc

Details Water soluble cellulose acetate composition having improved proc Water soluble cellulose acetate composition having improved proc

1988-09-02

1991-01-08

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

424475, 424480, 427 3, 106196, C08B 306, A61K 930, A61K 936

Patent

active

049837303

ABSTRACT:
Water soluble cellulose acetate composition having improved processability and tensile properties suitable for application as films, coatings and fibers and comprising one or more lower molecular weight water soluble cellulose acetate components and one or more higher molecular weight water soluble cellulose acetate components, and wherein the lower molecular weight water soluble cellulose acetate components have solution viscosities at least 20 percent of that of the higher molecular weight water soluble cellulose acetate components. An exemplary composition comprises from about 85 to 98 percent by weight of a lower molecular weight water soluble cellulose acetate component having a solution viscosity of form about 5 to 50 cps and from about 15 to 2 percent by weight of a higher molecular weight water soluble cellulose acetate component having a solution viscosity of greater than 100 cps.

REFERENCES:
patent: 3482011 (1969-12-01), Bohrer
patent: 4572833 (1986-02-01), Pedersen et al.
"Cellulose Acetate-Properties and Uses", Bulletin of Hercules Powder Company, 1953, pp. 13-16.

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